Results 61 to 70 of about 213,756 (303)

Expansion of the geographic range of Cyatta abscondita Sosa-Calvo et al., 2013 (Hymenoptera: Formicidae) [PDF]

open access: yes, 2016
The presence of the recently described fungus-farming ant genus and species Cyatta abscondita is reported in the northwestern region of Misiones Province in Argentina. A single worker of C.
Filloy, Julieta   +4 more
core   +2 more sources

Greater future range expansions in alien than native ant species

open access: yesOikos, EarlyView.
There is growing concern that many species may not be able to track suitable conditions under climate change and suffer range contractions as a result. At the same time, alien species introduced to novel geographic ranges are often assumed to benefit from climate change.
Tongyi Liu   +2 more
wiley   +1 more source

No Intersexual Differences in Host Size and Species Usage in \u3ci\u3eSpalangia Endius\u3c/i\u3e (Hymenoptera: Pteromalidae) [PDF]

open access: yes, 2017
Spalangia endius were collected from fly pupae, primarily house fly and stable fly, from a poultry house in Indiana. Male and female wasps did not differ within and across host species in host size usage.
King, B. H
core   +2 more sources

SYN‐A, a naturally derived synergist, restores pyrethroid efficacy against cabbage stem flea beetle but negatively impacts its parasitoid Microctonus brassicae

open access: yesPest Management Science, EarlyView.
SYN‐A, a naturally derived synergist, inhibited key metabolic pathways associated with pyrethroid insecticide resistance in cabbage stem flea beetle (CSFB) and its parasitoid Microctonus brassicae. SYN‐A restored pyrethroid efficacy against resistant CSFB allowing up to 80% reduction in application rates.
Patricia A. Ortega‐Ramos   +2 more
wiley   +1 more source

Morfologia externa da operária de Lestrimelitta ehrhardtti (Hymenoptera: Meliponini)

open access: yesActa Biológica Colombiana, 2010
Workers of Lestrimelitta ehrhardtti Friese were studied based on a great number of individuals collected in Castro municipality, Paraná State, Brazil. The specimens were described morphologically, measured and illustrated.
DANIELE. R PARIZOTTO
doaj  

Distribution and Biology of the Sphecine Wasps of Michigan (Hymenoptera: Sphecidae: Sphecinae) [PDF]

open access: yes, 2017
Biological information and distribution maps are provided for the 26 species of thread-waisted wasps that occur in Michigan. Podium luctuosum is a new state record.
O\u27Brien, Mark F
core   +3 more sources

Effects of bioinsecticide exposure route on aphids and their natural enemies in oilseed rape

open access: yesPest Management Science, EarlyView.
Fatty acids, silicone polymers and surfactants reduced aphid numbers but caused natural enemy mortality under direct exposure, while minimal residual activity suggests potential for targeted, compatible use in integrated pest management. Abstract BACKGROUND Myzus persicae Sulzer and Brevicoryne brassicae L.
Aimee J. Tonks   +3 more
wiley   +1 more source

Taxonomic revision of the oil-collecting bee subgenus Epicharis (Epicharitides) Moure, 1945 (Hymenoptera: Apidae), with the description of two new species

open access: yesEuropean Journal of Taxonomy
A taxonomic revision of the oil-collecting bees of the subgenus Epicharis (Epicharitides) Moure, 1945 is provided. A total of nine species were recognized: E. cockerelli Friese, 1900; E. duckei Friese, 1901; E. iheringi Friese, 1899; E.
Germán Villamizar, Felipe Vivallo
doaj   +1 more source

Sociogenetic structure in nests of the mud dauber wasp Trypoxylon (Trypargilum) albitarse (Hymenoptera: Crabronidae)

open access: yesEuropean Journal of Entomology, 2015
Trypargilum is a subgenus of solitary spider-hunting wasps whose males guard the nest, an unusual behaviour for male wasps. A male pairs with a female and copulates repeatedly with her during the nesting process, although females regularly copulate with ...
Antonio C. BRAGATO BERGAMASCHI   +3 more
doaj   +1 more source

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